257737844

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 108

約数和(自身を含む): 588809088

約数和(自身を除く): 331071244

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 169, 182, 196, 217, 251, 338, 364, 403, 434, 502, 637, 676, 806, 868, 1004, 1183, 1274, 1519, 1612, 1757, 2366, 2548, 2821, 3038, 3263, 3514, 4732, 5239, 5642, 6076, 6526, 7028, 7781, 8281, 10478, 11284, 12299, 13052, 15562, 16562, 19747, 20956, 22841, 24598, 31124, 33124, 36673, 39494, 42419, 45682, 49196, 54467, 73346, 78988, 84838, 91364, 101153, 108934, 146692, 159887, 169676, 202306, 217868, 256711, 296933, 319774, 381269, 404612, 513422, 593866, 639548, 708071, 762538, 1026844, 1187732, 1314989, 1416142, 1525076, 2078531, 2629978, 2832284, 4157062, 4956497, 5259956, 8314124, 9204923, 9912994, 18409846, 19825988, 36819692, 64434461, 128868922, 257737844]

約数ペア:

[(1, 257737844), (2, 128868922), (4, 64434461), (7, 36819692), (13, 19825988), (14, 18409846), (26, 9912994), (28, 9204923), (31, 8314124), (49, 5259956), (52, 4956497), (62, 4157062), (91, 2832284), (98, 2629978), (124, 2078531), (169, 1525076), (182, 1416142), (196, 1314989), (217, 1187732), (251, 1026844), (338, 762538), (364, 708071), (403, 639548), (434, 593866), (502, 513422), (637, 404612), (676, 381269), (806, 319774), (868, 296933), (1004, 256711), (1183, 217868), (1274, 202306), (1519, 169676), (1612, 159887), (1757, 146692), (2366, 108934), (2548, 101153), (2821, 91364), (3038, 84838), (3263, 78988), (3514, 73346), (4732, 54467), (5239, 49196), (5642, 45682), (6076, 42419), (6526, 39494), (7028, 36673), (7781, 33124), (8281, 31124), (10478, 24598), (11284, 22841), (12299, 20956), (13052, 19747), (15562, 16562)]